【作者】 朱香宝； 涂一航； 张晟昱； 张云鹏； 李恩；

【Author】 Xiangbao Zhu;Yihang Tu;Shengyu Zhang;Yunpeng Zhang;En Li;University of Electronic Science and Technology of China;Chengdu University;

【机构】 电子科技大学； 成都大学；

【摘要】 针对雷达吸波材料与基体之间在使用过程中容易产生脱粘或剥落的情况从而降低其吸波性能的情况,本文基于微波热像法提出了一种采用磁控管与渐变波导微波加热的脱粘缺陷无损检测技术。该系统由磁控管与渐变波导组合的方式对待测样品进行均匀加热,利用红外热像仪采集待测样品表面的温度变化,通过算法分析缺陷区与非缺陷区的温度差,最终实现脱粘缺陷的快速、无损检测。基于该系统对带有脱粘缺陷的待测样品进行了测试,验证了该方法的有效性。更多还原

【Abstract】 Aiming at the situation that the radar absorbing material and the matrix are prone to debonding or peeling in the process of use, which reduces its absorbing performance, this paper proposed a non-destructive detection technology for debonding defects using magnetron and gradual waveguide microwave heating based on microwave thermography method. The system uses a combination of magnetron and gradual waveguide to uniformly heat the sample and uses an infrared thermal imager to collect the temperature change of the sample surface to be measured.The temperature difference between the defect area and the non-defect area is analyzed by an algorithm. Finally, the rapid and non-destructive detection of debonding defects is realized. Based on this system, the test samples with debonding defects are tested to verify the effectiveness of the method.更多还原